Is there a way to move Tableau Cloud pod - for example we are currently on 10ay in the US West, and would like to move to one of the US East pods, as most of our data is in AWS us-east-1. Is there a way to do this?

You have to contact Tableau to do this. They can do it, I've moved a client from 10ay to Australia pod previously. We can't help you here though, you have to talk to your account rep.